#include <stdio.h>

int main() {
    unsigned int number= 1234567890; // 假设这是你要修改的32位无符号整数

    unsigned  int clearMask = ~(1 << 30) & ~(1 << 29);
  
    unsigned int setMask ;
    setMask = ~clearMask;

    unsigned int number_ = (number & clearMask) | setMask;

    printf("Original number: %d\n", number);
    printf("Modified number: %u\n", number_);

    return 0;
}

